Spacing mechanism for type-writing machines.



No. 738,492. y PATENTBD SEPT. a, 190s. 4 L. SGHLESINGBR.

SPACING MECHANISM FOR TYPE 'WRITING MACHINES. Arrmonzox rILnn APR. 1o. 1902.

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PATENTED SEPT. 8, 1903.

l L. SCHLESINGER. l SPAGING MEGHANISM FOR TYPE WRITING MACHINES.

APPLICATION FILED APR. 10. 1902.

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L. SGHLBSINGER. l SPAGI-NG MECHANISM FOR TYPE WRITINGMAGHINES.

APPLICATION FILED. APB. 10| 1992. N0 MODEL. I I 6 SHEETS-SHEET 3L imm/@w me Nonms PETERS co. wmomwm wAsmNoroN. n. c4

No. 738,492. y v PATENTED SEPT. 8, 1903. L. SGHLESINGER.

. SPAGING' MECHANISM EGB. TYPE WRITING MACHINES. Arrmoumx 'num APB. 1o. 1901.

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No. 738,492. PATENTED SEPT. 8, 190,3. L. SGHLESINGER. SPACINGl MECHANISM POR TYPE WRITING MACHINES.

APPLIOATION FILED APB.. 10, 1902.

N0 MODEL.

e SHEETS-SHEET 5.

No. 738,492. PATENTED SEPT. 8, 1903.

A L. SGHLESINGER.

S'PACING MEGH/ANISM IOR.TYPE WRITING MACHINES.

' APPLICATION IILBI) APB. 10. 1902.

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UNITED STATES Fatented September 8,

4PATENT OFFICE. y

LOUIS SOHLESINGER, OF MILWAUKEE, WVISOONSIN.

SPECIFICATION forming part of Letters Patent No. 738,492, dated September 8, 1903. Appiimionnea April 1o; 1902. serai N0. 1oz,251. (No man.)

its escapement and its free run in the direc-f tion of the line of print arrested at apredetermined point. Such a spacing mechanismusually comprises two coactingmembers-viz., a series ofstops and means for (logging said stops.

The primary object of the invention is to provide a construction in which the stops are separably adjustable and arranged to be set in adjusted position to define columnar positions at different points along the line oi' print and in which one of the coacting Inembers is c carried upon a shiftable or rotatable part which is mounted upon the machine-frame independently of the paper or other carriage, but connected thereto to shift as the carriage travels in the direction of the -line of print, and to arrange such a construction so that any one of a series of column-fields arranged along the line of print may be selected ata single operation, thus skipping all intermedi-` ate column-fields between the starting-point and the particular one at which the entry is to be made.

Another object of the invention is to provide finger-key mechanism for effecting the engagement of the clogging means with thel stops and forautomaticallydetainingthe parts in shifted position independently of the key mechanism, whereby the operationof the mechanism independent of the continued pressure of the operators finger upon the key is assured.

A stilli'urther object of the invention is to provide releasing means for the carriage,which is arranged to operate only after the operator has released the key mechanism, so that the premature run of the carriage before the stop mechanism is inposition is prevented.

Fig. 3 is a partial plan view with the carriage omitted for the sake of clearness. Fig. 4 is a vertical section on line 4 4 of Fig. Fig. 5 is avertical section on line 5 5 of Fig. 3. Fig.

G is a vertical section on line 6 6 of Fig. Figj' is a detail rear elevation of the carriage-release mechanism in shifted position. Fig. 8 is a detail plan view of the stop-dog and the operating parts. Fig. 9 is a vertical detail section on line 9 9 of Fig. S.

The improvement is shown as applied to a type-writer of the Remington type but it will lbe understood that it may be applied to va rious other styles of machines and not onlyV to those in which the shifting carriage carries the paper-support, but as well to those in which the shifting carriage carries the printh ing mechanism andtravels over a Iixed paper1h support, the invention being designed to arrest at predetermined points the travel of a carriage of any suitable type.

In the drawings many of the usual and well-known features of the typewriter are omitted for the sake of clearness. The base or main frame A of the machine carries the top plate a upon corner-uprights 10. The cylindrical platen O is journaled within a platen-frame l1, which is supported by a front roll 12, traveling on a cross-rail 12, fixed above the top plate and connected or hinged at its rear end to a carriage B. The carriage Bis mounted upon rolls l5,engaging the crossrail 14, fixed in position above there-ar portion of the top plate a. A rearwardly-extending horizontal arm b is fixed to the carriage B, and its rear forked end engages a collar 15, mounted to slide upon a cross-rail 1C, which is fixed between uprights lo, rising from top IOO plate a. The usual pivoted margin stop-bar cross-rail 1G. Carriage B is propelled in the .direction of the line of print by a springactuated barrel or drum E, iiXed to the inner end of a horizontal shaft 17. The latter is jou rnaled Within a tubular sleeve 18, which in turn is mounted to revolve within a bearing 19, formed on the end of a laterally-projecting portion 2O of a bracket 21, which depends from the under side of top plate a. A coiled actuating-spring e is connected at its outer end to the drum or barrel E and at its inner endto the inner end of sleeve 18. The usual ratchet-wheel 22 is held upon the outer end of the sleeve 18 by a nut 22 and is engaged by the double retaining-pawl 23, which is mounted on the center pivot 24. The carriage drive-strap e extends about the drum E, and its free end engages a hook 25, iixed to and depending from the carriage B. The carriage-escapement rack 27 is iixed in the usual manner to arms 28, which are pivoted at 29 to the carriage, so that the rack may be swung upward and released from the pinion 30, with which it normally engages. The latter is iiXed upon the forward end of a shaft 31, which is journaled within a suitable housing 32, fixed upontop plate a. The escapement ratchet-wheel 33 is mounted upon the rear outer end of shaft 31, the teeth of which are engaged by the dogs or pawls 34 and 35, mounted upon the upwardly-extending arm 36 of the dog-rocker. The latter is journaled between rearwardly-projecting ears 37 upon the bracket 2l and is provided with a forwardly-projecting arm 38, connected to the universal bar of the machine, so that the carriage travels step by step in the direction of the line of print as the keys are operated in the usual manner. The driving barrel or drum E, over which the carriage drive-strap e is wound, is preferably camshaped, as clearly indicated in Fig. 4, so that the pull upon the carriage will be uniform at all times in spite of the diminishing tension of the drive-spring e as the carriage moves to the left.

The parts thus far described are wellknown in the Remington No. G type-writin g machine, and their construction neednot be more particularly set forth.

Upon the rearwardly-projecting end of the shaft 17 is carried a wheel or disk F, which serves as a mount for the column-field stops G. The disk is preferably provided with a series of radial slots or seatsfin its periphery for the stops,and these slots or seats are spaced to correspond with the various spaced positions of carriage B. If the drive drum E upon which the carriage-strap e is Wound is cylindrical in outline, the slots or seats fare uniformly spaced upon the periphery of disk F; but ii", as in the instance shown, the drivedrum E is cam-shaped in outline the seats must be variably spaced,as indicated in Fig. 2, in order to properly correspond with the various letter-space positions of the carriage. The stop-supporting disk F is preferably adjustably fixed to the end of shaft 17 and for this purpose is provided with a conical central bore snugly fitting a corresponding cone-shaped section 39 ofl the shaft and is iirmly but adjustably held in position by a lock-nut 40. By thus adj ustably connecting the stop-supporting disk to the carriage its notches or seats may be caused to register accurately with the letter-space scale which indicates the position of the carriage. Stops G are inserted in seats f from the rear in any desired position, with the Working portion g of the stop projecting beyond the periphery of disk F, and are conveniently provided with proj ecting linger-pieces g. The periphery of the disk F is preferably provided with a lockingring f', of wire, held in place Within a seat or groove near the inner face of the disk, and the stops G have notches g2, arranged to engage the wire, so that they may be firmly held in position. The various stops G are thus independently adjustable and arranged to be set in adjusted position to define colu mnar positions atdesired points along the line of print. For convenience in setting the stops the seats f for the column-stops are numbered from 07 to 75 in correspondence with the marks upon the letter-space scale.

The drum or barrel E is provided with a section E,over which is wound a second strap e2, in a direction, however, the reverse of that in which the strap e is Wound upon the drinnsection E. If the section E is cylindrical, the drum-section E will be similarly shaped and of the same size; but if, as in this instance, it is cam-shaped the section E' will be correspondingly shaped and of the same size, but set in a reverse position. (See Fig. 4.) The strap e2 extends from beneath the drum-section E under a guide-pulley or idler 41 and over a guide-pulley 42, and its free end is connected to the carriage-hook 25, so that as the carriage is propelled by its spring in the direction of the line of print strap e2 is un-' wound vfrom the drum-section E', while the istrap e' is wound up upon the drum-section E. The guide-pulley 42 is properly positioned by abracket 43,Which projects from the upper end of the rear right-hand corner-post 10 and upon the end of which the pulley 42 is journaled. Idler-pulley 4l is conveniently j ournaled upon the depending bracket 21. It will be noted that stop member F is, shiftably mounted upon the main frame of the machine independently of the carriage B, but that it is connected thereto so as to shift as the carriage travels in the direction of the linel of print. Also by releasing the carriage and interposing suitable dogging means in the path of the stops G the carriage will be drawn rapidly in letter-space direction by spring' e and strap e', but will be arrested at predetermined points when one of the stops is engaged by the dogging means through the medium of the stop-strap c2.

IIC

The end of the shaft 17 affords aconvenient mount for the ordinary warningbell H, which is arranged to be struck by a tappet h, mounted upon the pivoted bar D. For convenience in adjusting the tension of the carriage-spring e a short stub-shaft 44, having a thumb-piece 45 on its outer end and a toothed wheel 46 on its inner end, is journaled in a bracket 47, fixed to the rear left-hand post lO. The stubshaft 44` slides longitudinally through the bracket 47 and may be pushed inwardly to bring the toothed wheel into engagement with the ratchetsvheel 22 for winding up the carriage-spring e. Normally, however, the stub-shaft is held in outward position, with wheel 4G disengaged from ratchet 22 by a spring 48, coiled about the shaft and interposed intermediate the bearing 47 and thumbpiece 45. The double retainingpawl 23 is provided at its lower end with a laterally-extending portion 49, having a handle 50 and which projects beyond the edge of the stopdisk F, so as to be easily accessible for releasing the tension of drive-spring e.

A supporting-plate 5l is secured beneath stop-disk F by screws 52 to the horizontal plate a?, formed upon the rearwardly-projecting portion of the base-frame A, and is provided with a central upwardly-extending boss 53, having a cylindrical bore. dog-carrier 7c is mounted to shift within the bore of the boss 53 and normally rests upon plate a2. A stop block or dog K is fixed to the upper end of the dog-carrier 7o in line with the path of movement of the stops G and is preferably adjustable thereon in a direction tangential. with such path of movement. For this reason the adjacent abutting faces of the dog-carrier anddog are provided with a corresponding` series of interlocking teeth, (see Fig. 8,) and the fastening-screw 54 for holding the dog in place passes through a longitudinal slot 55 therein. (See Fig. 4.) By this adjustment the accurate arrest of the papercarriage at proper points is assured.

Dog-carrier 7c and dog K are shifted into the path of movement of the stops G by a rock-arm 56, which is fixed to and projects rearwardly from a short rock-shaft 57, with its free end engaging a longitudinal slot 58, formed in the dog-carrier 7a. Rock-shaft 57 is journaled within abracket 57i, fixed upon the front edge of frame section or plate d2, and carries a forwardly-projecting rock-arm 59, which is pivoted at its free end to the up` per end of a rigid link 60. The lower end of link 60 is pivoted to a key-lever M, which eX- 4tends along one side of the main frame forwardly to the keyboard of the machine and is pivoted at its rear upon the common fulcrum 6l for the type-bar key-levers.

key-lever M `is normally upheld by a spring 62, fixed to a cross-bar U3 and engaging the under side of the lever, in which position the free end of rock-arm 56 engages the lower end of slot 58 in. the dog-carrier 7c and holds the latter and dog K in depressed position A cylindrical The i out of the path of the stops G. One or more push-buttons or finger-keys N are mounted upon one side of the keyboard of the machine, and their stems '1t are mounted to shift Vertically through upright sleeves 64, formed upon a support 65, which is secured upon one side of the keyboard. The lower ends of pushkey stems n are provided with contacts or collars n, which are preferably' adjustably threaded thereon and arranged to engage the .forward end of spring-held key-lever M, by

which the keys are normally upheld.

The columrnfield stops G are preferably of .different lengths-that is, their outer contact portions g, with which dog K engages, project outwardly to different distances from the periphery of the stop-disk F or arel arranged in different paths of travel. The stops are arranged progressively, the shortest stop being the first one with which the dog may engage and the longest stop being the last one upon the periphery of the stop-disk. So, also, a series of keys N are preferably employed, corresponding in number to the different stops. Any desired number of stops and keys may be used, but in the present instance I have illustrated iive different stops and keys. The downward movement of the keys N is limited by their engagement with the upper ends of the supporting-sleeves 64, which thus act as stops to determine the extent of depression of the separate keys, and, as clearly indicated in Fig. l, the 'sleeves are graded progressively, so thatvaryingextentsof depressionwillbeimparted bythevariablethrowof the several keys to the forward end of the key-lever M. Gonsequently the dog K will be shifted to. varying positions, the parts being so designed that such positions will correspond to thel graded column-field stops G. Thus when any key is depressed dogK is shifted to proper position to engage the column-stop corresponding to that key, and when the carriage is released its free run will be arrested at the desired columnar position or field upon the paper and the intermediate stops and column-fields will be skipped. In this way any predetermined one of a series of fields arranged along the line of print and defined by the separate stops may be selected by a single operation of the spacing mechanism. It will be noted (see Figs; 4 and 9) that the slot 58 in dog-carrier 7c' is of considerably greater width than the end of the operating rock-arm 5G, so that before the dog-carrier and the dog K are shifted the lost motion between the end of the rock arm and the top of slot 58 must be taken up. The throw, however, of the key lever M is sufficient to take up this lost motion and, in addition, shift the dog to the desired position. The separate field-stops G are independently adjustable and arranged to set in adjusted position, as described, upon the stop-disk F, so as to define the size and location of the different fields arranged along the line of print in keeping with the desired a1.'- rangement upon the paper.

ICO

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To lock dog K in any of its shifted positions, a check-pawl 66 is pivoted within a slot cut in the side of the boss 53, and a coiled springV 67, arranged beneath the tailpiece of the pawl, is arranged to force its upper end into engagement with a series of teeth 68, cut upon the side of the dog-carrier 7o. when any key is depressed and dog K shifted pawl 66 engages 011e of the teeth 68 and locks the dog in position, so that the operator need not hold down the selected key. The latter, however, together with the keylever M, is returned part way to normal position as soon as released to the extent permitted by the lost motion'between the end of the rock-arm 56 and the dog-carrier le.

A rod 69 is pivoted at its lower end to the rock-arm 56 and is guided at its upper end within an eye or bearing 70, formed upon a plate 7l, which projects rearwardly from top plate a and is secured thereto by a stub-bolt 7l. Rod 69 is bent or offset, as shown in Fig. 4, so that it will reciprocate vertically through the eye or bearing 70. A split supporting-lug 72 is iixed to rod 69 near its upper end, to which is pivoted an upwardlyextending latch or pawl 73, normally pressed by a flat spring 74 against the tail of a pawl 75. Thelatter is pivoted upon a downwardlyextending lip or projection 76 upon the end of plate 7l and has at its upper end a notch or shoulder 77, which normally engages the rear end of a release-lever P. A bent-strip spring 78 is fixed to a lug 79 on pawl 75 near its pivot and extends downwardly, then upwardly, and is provided with an inclined upper end which engages a pin or roller 80, iixed to the rear end of release-lever P. This springv serves toV press the locking-pawl 75 toward the end of release-lever P and to normally hold it into engagement therewith. The release-leverP is pivoted intermediate its ends upon a stud 8l, which is ijxed to an upright 82, rising from plate 71, and the forwardly-extending portion of the lever is provided with a releasing-plate p, which surrounds the pinion 30 and extends beneath the carriage-rack 27. A spring 83, coiled about the pivot-section of release-lever P, tends to hold its forward end in depressed inoperative position and to return it to such position after it has been shifted to lift rack 27 out of engagement with pinion 3l, and thus release the carriage.

'Release-lev'erP is of course normally locked in its inoperative position by the engagement of the shoulder or notch 77 of pawl 75 with l its rear end.

When any key N is depressed to actuate lever M and shift dog K, as described, rod 69 will be shifted by the rock-arm 57V to lift latch 73 and bring the shoulder 84 thereon above the tailpiece 85 of the locking-pawl 75. Then when the finger-key N is released by the operator although the dog K is locked in its shifted position by pawl 66 rock-arm 56, and with it rod 69, will descend to the extent of the lost motion between the rock-arm 56 and Thus . dog-carrier k, and the shoulder 84 on latch 73 rack 27 thrown out of engagement with pinion 30, thus releasing the carriage for a free run until arrested by the engagement of one of the stops G with the dog K. When the locking-pawl 7 5 is thus swung out from beneath the rear end of release-lever P, its upper end will engage the upper end of latch 73, and thus serve to disengage the shoulder 84 of the latch from the tail 85 of the dog, so that the latch and rod 69 may descend to the full extent permitted by the lost motion between rock-arm 56 and dog-carrier 7a.

It will be noted that in the normal position of the parts, as shown in Fig. 4, the shoulder 84 is positioned at a distance below the tailpiece 85 equal to the extent of this lost motion, so that the shoulder willbe invariably brought above the tailpiece when any key is depressed'. Moreover,this lost motion is equal to or greater than the greatest shift of the dog-carrier 7c, so that the latch 73 will descend through a sufficient extent to throw out the detaining-pawl 75 irrespective of the extent to which the dog K is shifted. By thus actuating the release-lever through the medium of the spring 78, which is previously placed under tension and permitted to act by the shift of locking-pawl 75, the carriage-rack 27 will be lifted quickly from engagement with pinion 30 irrespective of the speed of actuation of keys N by the operatorthat is to say, the release mechanism although actuated by the operator is automatically controlled and there is no danger that the rack as the carriage travels quickly toward the left will scrape along the pinion 30 to injure or wear the intermeshing teeth. The split collar 7 2, upon which the releasing-latch 73 is pivoted, is held adjustably in position upon the rod 69 by a screw 86, extending between the split sections, so that the position of the latch may be adjusted to effect release promptly at the proper point. As soon as the release-lever P is actuated it is locked in its shifted position by a pin 87, adjustably threaded through the end of a bell-crank 88. The latteris pivoted on a stud 89, rising from plate 7l., and its spring normally holds the pin 87 against the side of the outer end of lever P, but swings it over the rear end of the lever as soon as the latter is depressed. The carriage is then free to run and is arrested in proper position. Moreover,

since dog K is locked there is no danger that the shock of contact between the stops and dog will throw the latter out of line and allow the carriage to run a step or two farther; but the latter will be invariably arrested at the desired position.

IOC.

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After the spacing` mechanism has been operated as described at the next subsequent operation of any key to print a character the dog -rocker 3G swings forward in the usual manner, and a lug or projection 9lupon its upper end, (see Fig. 6,) which is arranged behind the end of one of the arms 92 of bell-crank and throws the latter from engagement with the teeth 68 of the dog-carrier k. The latter, together with the stop-dog K, is returned to normal by the rock-arm 57, which, together with key-lever M and the fin ger-key N, is then free to be returned completely to normal position by spring 62. The finger keys may then be manipulated in the usual manner to print characters in desired position upon the paper.

An arm 95, preferably of spring metal, is iixed to the rearwardly-extending arm 92 of bell-crank S8, and When the latter swings upon its pvot to lock the release-lever P the arm or detent 95 is shifted into engagement with the teeth of escapement-ratchet Any accidental displacement or overthrow of the escapement-wheel and the pinion 30, connected thereto, when released from rack-bar 27 is thus prevented, and the latter when unlocked will rengage the pinion to hold the carriage in proper letter-space position. Detent 95 is of course returned to normal out of engagement with the escapcment-wheel when bell-crank 92 is shifted to normal position by the lug 91 on the dog-rocker.

Upon a bracket 9G, depending from the rear end of the bearing 19, is pivotally supported, intermediate its ends, a brake-lever R, to the upper end of Which is j ournaled a friction-roll fr, arranged to bear upon a cylindrical frictionsurface 97, formed upon the rear face of stopdisk F. The lower arm of brake-lever R is bent laterally and carries j ournaled on its end Va bearing-roll 9S, which is arranged to be engaged by cam-piece 99. The latter is fixed to the end of a stud 100, which is fixed upon dogcarrier 7c and preferably formed in piece therewith and which projects laterally through a vertical slot 101, formed in the side of the boss or bearing 53. The cam-piece 99 is provided with an incline face arranged to engage the roller 98, and the cam piece is preferably split, as shown, and connected to thelug 10() by an adj ustin g-screw 102, so that the degree of inclination of the cam-surface may be adjusted. Vhen the dog-carrier k is shifted by one-of the finger-keys, the upward movement `of the cam-piece 99 swings brake-leverR and brings its friction-roll?1 to bear upon the friction-surface 97. The too rapid movement of the paper-carriage is thus checked and injurious shocks upon the partswhen brought to rest by dog K avoided. It may also be noted that byI connecting the stop member F to the carriage by a flexible stop-strap e2 the shock upon the quickly-movin g carriage is much less than when the stop member is directly mounted thereon.

The operation is obvious from the foregoing. i

It will be understood that numerous modiiications could be made by the skilled mechanic Without departure from the spirit of the invention and that features of the invention could be used without its adoption as a whole.

The phrase two-way connection as used in some of the claims is intended to cover any suitable means for so connecting the shiftable stop-supporting device to the paper-carriage that they must necessarily both be arrested together and must necessarily shift in unison both during the letter -space movement of the carriage and during its return movement, in contradistinction to a one-Way flexible connection between these parts,which would permit the carriage `to overrun when the stop support has been arrested or with which an independent spring or the like must be connected to the stop-support to take up the slack in the iiexible connection during the return movement of the carriage. v

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. Inspacing mechanism for type-Writing machines, the combination with a carriage, of means for arresting the travel of said carriage comprising tWo elements, viz: a series of column-field stops and means for dogging said stops,` thc latter being' adjustable and arranged to be set in adjusted position to define columnar points along` the line of print and a shiftable part Whereon one of said elements is mounted, said part being sustained on the main frame of the machine independent of said carriage but connected thereto to shift as the carriage travels in the direction of the line of print and means foreffecting the engagement of said dogging means With a predetermined one of said columireld stops.

2. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting the travel thereof comvprisin g two elements, viz: a series of columnfield stops independently adjustable to define various columnar positions and means for dogging said stops, a shiftable part Whereon one of said elements is mounted, said part being sustained upon the main frame of the machine independent of said carriage but connected thereto to shift as the latter travels in letter-space direction and finger-key mechanism for effecting the engagementof said dogging means with a predetermined one of said column-field stops.

IOO

IIO

3. In spacing mechanism for type-writing machines, the combination with a power-propelled carriage, of means for arresting the travel thereof comprising two elements, viz: a series of column-field stops independently adjustable to define various columnar points arranged along the line of print and means for doggin g said stops, a shiftable part whereon one of said elements is mounted, said part beingsustained upon the main frame independent of said carriage but connected thereto to shift as the latter travels in letter-space direction, an escapement mechanism for said carriage, a releasing mechanism therefor and key-operative means arranged to actuate said release and to effect the engagement of said dogging means with a predetermined one of said column-field stops.

4. In spacing mechanism for type-writing machines,'the combination with a carriage, of means for arresting its travel comprising two elements, viz: aseries of adjustable stops and means for dogging said stops, a shiftable part whereon one of said elements is mounted said part being sustained on the machineframe independentlyof said carriage but having two-way connections with said carriage and moving in unison therewith in opposite directions, means for effecting the engagement of said clogging means with said stops, and a series of grooves or seats corresponding to letter-space positions for said adjustable stops.

5. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting its travel comprising two elements, viz: a series of stops and means for dogging said stops, a shiitable driving member sustained on the main frame independent of the carriage whereon one of said elements is mounted and a positively-acting stop connection between said shiftable driving member and said carriage.

6. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting its travel comprising two elements, viz: a series of independentlyadjustable stops and means for dogging said stops and a shiftable driving member for said carriage whereon one of said elements is mounted, said driving member having a positively-acting stop connection with said carriage.

7. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting its travel comprising two elements, viz; a series of independentlyadjustable stops and means for dogging said stops,a shiftable driving member for said carriage whereon one of said elements is mounted, said driving member having a positivelyacting stop connection with said carriage, an escapement mechanism for said carriage,a releasing mechanism therefor and key-operative means arranged to actuate said release and to effect the engagement of said dogging means with said stops.

8. In spacing mechanism for type-writing machines, the combination with a carriage, of a driving member having a vfiexible driving connection and a reversely-arranged flexible stop connection with said carriage, and means for arresting the travel of said carriage comprising a series of stops and means for dogging said stops, one of said elements being mounted upon said driving member.

9. In spacing mechanism for type-writing machines, the combination with a carriage, of a driving member having a flexible drive connection and a reversely-arranged stop connection with said carriage, means for arresting the travel of said carriage comprising a series of stops and means for dogging said stops, one of said elements being mounted upon said driving member, an escapement mechanism for said carriage, a releasing mechanism therefor and key-operative means eX- tending to the keyboard of the machine and arranged to actuate said release to effect the engagement of said dogging means with said stops.

10. In spacin g mechanism for type-writing machines, the combination with a carriage, of a shiftable member independently mounted upon the machine-frame but connected to the carriage to shift as the latter travels in letter-space direction, means for arresting the travel of the carriage comprising two elements, viz: a series of column-field stops and means for dogging said stops, the latter being adjustable and arranged to be set in adjusted position and to define columnar positions along the'line of print, one of said elements being mounted upon said shiftable member and the other on the machine-frame and keyoperative means arranged to variably shift 105 stops and means for dogging said stops, one

of said elements being mounted uponsaid shiftable member and the other on the machine-frame, an escapement for said carriage, a releasing mechanism therefor and key-operative means arranged to actuate said release mechanism to variably shift said dogging means to effect the engagement of the latter with a predetermined one of said column-field stops.

l2. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable member sustained upon the machine-frame independent of said carriage but connected thereto to shift as the carriage travels in letter-space-direction and means for arresting the travel of said carriage comprising a series of column-field stops adjustably mounted upon said shiftable member and arranged to be set in adjusted position and means arranged for logging a pred etermined one of said column-field stops.

13. In spacing mechanism for type-writin g machines, the combination with a carriage, of a shiftable member sustained upon the machine-frame independent of said carriage but connected thereto to shift as the carriage t-ravels in letter-space direction, means for ari `positions sustained independently of said carriage but positively connected thereto to shift as the latter travels in opposite directions and means for arresting the travel of said carriage comprising a stop adjustably mounted on said grooves or seats of said shiftable member and a dog mounted upon the machine-frame and key-operative means arranged to effect the engagement of said dog with said stops.

15. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable member' sustained independently of said carriage but positively connected thereto to shift as the latter travels in opposite directions and means for arresting the travel of said carriage comprising, viz: a series of independently-adjustable stops m ounted on said shiftable member and means for clogging said stops mounted on the machineframe and key-operative means extending to the keyboard of the machine and arranged to shift said dogging means to effect the engagement thereof with said stops.

16. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable driving member having a positively-acting stop connection therewith and means for arresting the travel of said carriage comprising a series of independently-adjustable stops mounted upon said driving member, means for dogging said stops and keyoperative means arranged to effect the engagementof said clogging meanswith said stops.

17. In spacing mechanism for type-writing machines, the combination with a carriage, of a driving member having a flexible driving connection and a reversely-arranged flexible stop connection with said carriage, a series of column-stops mounted upon said driving member, means for clogging said stops mounted on the machine-frame and key-operative means arranged to shift said (logging means to effect the engagement of the latter with said stops.

18. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable member sustained independent of the carriage but connected thereto to shift as the carriage travels in letter-space direction, means for arresting the travel of said carriage comprising two elements, viz: a series of column-field stops mounted upon said shiftable member and means for dogging said stops, and means for shifting one of said elements to effect the engagement of said dogging means with a predetermined one of said column-field stops. f

19. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable member sustained independent of the carriage but connected thereto to shift as the carriage travels in letter-space direction, means for arrestingthe travel of said carriage comprising two elements, viz: a series y of graded column-field stops having their contact portions in different paths of travel and means for clogging said stops, one of said elements being mounted on said movable member and the other on the machine-frame, and means for effecting the engagement of said clogging means with a predetermined one of said graded column-field stops.

20. 1n spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable member sustained independent of the carriage but connected thereto to shift as the carriage travels in letter-space direction,m eans for arresting the travel of said carriage comprising two elements, viz: a series of independently-adjustable graded columnfield stops mounted upon said shiftable member and having their contact-faces in different paths of travel and means for dogging said stops,and key-operated mechanism for effecting the engagement of said dogging means with a predetermined one of said column-field stops. fr

.21. In spacing mechanism for type-writing machines, the combination with a carriage, of a power-propelled driving member, said member having two-way connections with said carriage to travel in unison therewith in opposite directions, means for arresting the travel of said carriage comprising a series of independently-adjustable stops mounted on said driving member and meansfor clogging said stops mounted on the machine-frame.

22. In spacing mechanism for type-writing machines, the combination with a carriage, of a rotatable part mounted on the machineframe and connectedv to said carriage and means for arresting the travel of the latter comprising two elements, viz: a series. of column-field stops and means for clogging said stops,the latter being adjustable and arranged to be set in adjusted position, one of said elements being mounted upon said rotatable member, and m'eans for effecting the engage- ICO IIO

ment of said doggin g means with any predetermined one of said column-field stops.

23. In spacing mechanism for type-Writing machines, the combination with a carriage, of a rotatable member mounted on the machine-frame and connected to the carriage, a series of column-field stops mounted upon said rotatable member, means for dogging said stops and key-actuated devices for eifecting the engagement of said dogging means With any predetermined one of said column-field stops.

24. In spacing mechanism for type-Writing machines, the combination with a carriage, of a rotatable member mounted on the machine-frame and connected to the carriage, of means for arresting the travel of said carriage comprisinga series of stops and means for dogging said stops, a support for said stops rotatably adjusted on said rotatable member and key-operated means arranged to effect the engagement of said dogging means With said stops.

25. In spacing mechanism for type-Writing machines, the combination with a carriage, of a rotatable member mounted on the machineframe, said rotatable member having two- Way connections With saidcarriage to travel in unison therewith in opposite directions, means for arresting the travel of said carriage comprising a series of stops and a dog for engaging said stops, a series of grooves or seats for receiving said stops formed on said rotatable member and correspon/din g to the various letter-space positions and linger-key mechanism for shifting said dog to engage said stops.

26. In spacing mechanism for type-Writing machines, the combination with a carriage, of a rotatable power-propelled member mounted `on the machine-frame, said driving member having two-Way connections With said carriage to travel in unison therewith in opposite directions, means for arresting the travel of said carriage comprising a series of independentlyadjustable stops and means for dogging said stops, one of said elements being vmounted on said rotatable driving member.

27. In spacing mechanism for type-Writing machines, thecombination with a carriage, of a rotatable power-propelled drum having a exible driving connection with said carriage and a reversely-Wound stop connection therewith, means for arresting the travel of said carriage comprising a series of stops and means for dogging said stops, one of said elements being connected to said rotatable drum and the other being mounted on the machineframe, and finger-key mechanism for shifting said last-mentioned element to effect the engagement of said dogging means With said stops.

28. In spacing mechanism for type-Writing machines, the combination With a carriage, of a rotatable power-propelled drum having a flexible driving connection with said carriage and a reversely Wound and arranged stop connection therewith, means for arresting the travel of said carriage comprising a stop-disk adjustably connected to said drum, a series of adjustable stops upon said stop disk, means for dogging said stops mounted upon the machine-frame and key-operated devices for shifting said dogging means to engage said stops.

29. y In spacing mechanism for type-Writing machines, the combination With a carriage, of a power-propelled drivin g-dru m therefor having duplicate reverselyarranged cam-sections, iiexible drive and stop straps reversely Wound upon said duplicate cam-sections and connected to said carriage, a series of columnstops and means for dogging said stops, one of said elements being connected to said drum and the other being mounted upon the machine-frame and means for effecting the engagement of said dogging means With said stops.

30. In spacing mechanism for type-writing machines, the combination with a carriage, of a rotatable member mounted on the machine-frame independently of said carriage but connected thereto to shift as the-latter travels in letter-space direction, the shaft of said rotatable member having a conical section, a stop-supporting dis-k having a correspondingly-shaped bore adjustably mounted on the conical section of said shaft, a locknut for holding said disk in adjusted position, a series of seats or grooves in the periphery of said disk corresponding to various letter-space positions, a series of column-stops set in adjusted position within said seats and a shiftable dog mounted on the machineframe arranged to engage said stops.

3l. In spacing mechanism for type-Writing machines, the combination With a carriage, of a rotatable member mounted on the machine frame and having a stop connection With said carriage, means for arresting the travel of the latter comprising tWo elements, viz: a series of column-field stops and means for dogging said stops, one of said elements being mounted on said rotatable member and key-operated meansextendin g to the machinekeyboard for effecting the engagement of said dogging means with a predetermined one of said column-field stops.

32. In spacing mechanism for type-Writing machines, the combination with a carriage, of a rotatable stop-disk mounted on the machine-frame and connected to said carriage, a series of graded column-field stops mounted on said stop-disk, means for dogging said stops and means for variably shifting said dogging means to effect the engagement .thereof With a predetermined one of said column-field stops.

33.' In spacing mechanism for type-Writing machines, the combination With a carriage, of a rotatable driving-drum having flexible driving and stop connections with said carriage, escapement mcchanisnr for said carriage and releasing' means therefor, a series of graded column ield stops adjustably IOO inounted upon said driving-drum, a dog on the machine-frame for engaging said stops and key mechanism arranged to variably shift said clog to engage any predetermined one of said stops.

34. In spacing mechanism for type-writin g machines, the combination with a carriage, of a shiftable member sustained inclepenclently of said carriage but connected thereto to shift as the latter travels in letter-space direction, means for arresting the travel of said carriage comprising a series of stops and clogging means for engaging said stops, one of said elements being mounted upon said shiftable member, key mechanism for shifting one of said elements to effect the engagement of said clogging :means with said stops and means automatically operating to detain said element in shifted position independently of said key mechanism.

35. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftablle member sustained independently of said carriage but connected thereto to shift as the latter travels in letter-space direction, means for arresting the travel of said carriage comprising a series of stops and dogging means for engaging said stops, one of said elements being mounted upon said shiftable member, key mechanism for shifting one of said elements to elfect the engagement of said clogging means with said stops, means automatically.operating to lock said element in shifted position and a release for said lock actuated bythe printing mechanism of the machine.

3G. In spacing mechanism for type-writing machines, the combination with a carriage, of a shiftable member sustainedindependently of said carriage but connected thereto to shift as the latter travels in letter-space direction, of means for arresting the travel of said carriage comprising two elements, viz: a series of column-field stops and means for clogging said stops, one of said elements being mounted upon said shiftable member and the other upon the machine-frame, mea-ns for variably shifting one of said elements to effect the engagement of said dogging means with a predetermined one of said column -field stops and a lock for detaining saidu element in any one of its shifted positions.

37. In spacing mechanism for type-writing machines, the combination with a carriage, of a rotatable stop-clisk sustained on the machine-frame independent of said carriage but having a stop connection therewith, a series of column-stops mounted upon said disk, a dog for engaging said stops, actuating key mechanism for shifting saidl dog, a lock for detaining said dog in its shifted position and an arm upon the escapement-dog rocker of the machine for releasing said lock.

38. In spacing mechanismfor type-writing machines, the combination with a carriage, of a shiftable member sustained independently of the carriage but connected thereto to shift as the latter travels in letter-space direction, means for arresting the travel of said carriage comprising two elements, viz: a series of column-iield stops and means for clogging said stops, means extending to the keyboard of the machine for effecting the engagement of said clogging means with a predetermined one of said column-field stops and a series of finger-keys for actuating said means.

3f). In spacing mechanism for type-writing machines, the combination with a carriage, of a rotatable stop-disk having a stop connection with said carriage, a series of graded columneld stops adjustably mounted on said stopclisk, a dog for engaging said stops mounted on the machine-frame, a key-lever for shifting said dog and a series of finger-keys arranged to variably shift said key-lever to eifect the engagement of said dog with a predetermined one of said stops.

40. In spacing mechanism for type-writing machines, the combination with a carriage, an escapement mechanism and a releasing mechanism therefor, of a rotatable stop-disk having a stop connection with said carriage, a series of graded column-held stops mounted on said disk, a dog for engaging said stops mounted upon the machine-frame, a key-lever for shifting said dog and for actuating said release and a series of finger-keys for variably shifting said key-lever to eifect the engagement of said dog with any predetermined one of said stops.

4l. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting its travel comprising two elements, viz: a series of column-field stops and means for clogging said stops, andactuating devices comprising a series of fingerkeys of variable throw arranged to variably shift one of said elements to effect the engagement of said dogging means with a predetermined one of said stops.

4t2. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting its travel comprising two elements, viz: a series of column-eld stops and means for clogging said stops, and actuating devices eomprising a series of lingerkeys and a series of graded stops arranged to variably limit the throw of the several keys,

whereby one of said elements is variably shifted to eifect the engagement of said dogging means with a predetermined one of said stops.

43. In spacing mechanism for type-writing machines, the combination with a carriage, of means for arresting its travel comprising a series of graded column-iicld stops arranged to shift with said carriage, a dog for engaging said stops, a key-lever for shifting said dog, a series of iinger-keys for actuating said lever and a series of graded, supporting stopsleeves for said finger-keys arranged to variably limit the throw thereof, whereby said dog will be variably shifted to engage any predetermined one of said stops.

44E. p In spacing mechanism for type-writing ICO IIO

machines, the combination with a power-propelled carriage, an escapement and a release therefor, of means for arresting the travel of said carriage comprising a stop and a dog for engaging said stop, and a key-operated reciprocating member arranged to move one ofsaid parts to position to engage the other during the forward movement of said member and to actuate said release during the return movement thereof.

45. In spacing mechanism for type-writing machines, the combination with a power-propelled 'paper-carriage, an escapement and a release therefor, of means for arresting the travel of said carriage comprising two elements, v iz: a series of stops and means for dogging said stops,'a key-operated reciprocating member having a lost-motion connection with one of said elements and arranged to move the same to engage the other of said elements during the forward movement thereof, a lock forretainingsaid clement in its shifted position and a trip on said reciprocating member arranged to actuate said release during the return movement thereof.

46. In spacing mechanism for type-writing machines, the combination with a power-propelled paper-carriage, anescapement and a release therefor,means for arresting the travel of said carriage comprising two elements viz: a series of stops and means for dogging said stops, a key-operated reciprocating member, a rock-shaft operated thereby and having a lost-motion slot connection with one of said elements'and arranged to move the same to engage the other of said elements during the forward 'movement of4 said member, a lock for retaining said element in shifted position and a spring-pressed latch operated b v said member and arranged to actu ate said release during the return movement thereof.

47. In spacing mechanism for type-writin g machines, the combination with a power-propelled paper-carriage, an escapement and a machines, the combination with a power-propelled -paper-carriage, an escapement and a release therefor, of means for arresting the travel of said carriage comprising two elements, viz: a series of stops and means for dogging said stops, a braking device, a keyoperated reciprocating member arranged to move one of said elements to engage the other and to apply said braking device during its forward movement, said member having a lostmotion connection with said parts, a lock for detaining said parts in shifted position and a trip operated by said member and arranged to actuate said release during the kreturn movement thereof.

49. In spacing mechanisln for type-writing machines, the combination with acarriage, an escapement and a release therefor, of means for arresting the travel of said carriage com- -prising two elements,viz: a series of stops and means for dogging said stops, a key-operated reciprocating member having a lost-motion connection with one of said elements and arranged to shift the same to engage the other of said elements during its forward shift, a lock for detaining said element in its shifted position, a trip operated by said member as it returns to normal for actuating said release, a lock for detaining said release in operative position and means controlled by the printing mechanism of the machine for releasing both of said locks.

50. In spacing mechanism for type-writing machines, the combination with a carriage, an escapement and a release therefor, of means for arresting the travel of said carriage comprising a stop-disk, a series of stops and a braking-surface mounted on said disk, a dog for engaging said stops and a brake for engaging said surface carried on the machineframe, a brake-actuator, a key-operated rockarm having a lost-motion slot connection with said dog and said brake-actuator arranged to move said dog to engage said stops and to apply said brake during its forward movement, alock for detaining said dog and brakeactuator, a rod connected to said rock-arm and a spring-pressed latch carried upon said rod and arranged to actuate said release during the return movement of said rock-arm.

5l. In spacing mechanism for type-writing machines, the combination with a carriage, an escapement therefor, of means for arresting the travel of said carriage comprising a series of stops and means for dogging said stops, a release-lever for said escapement, a locking-pawl for holding said release-lever out of operation, an actuating-spring extending between said pawl and said lever, keyoperated devices for effecting the engagement of said dog with said stops and a trip actuated by said devices and arranged to throw said locking-pawl and place said spring under tension to throw said release-lever.

52. In spacing mechanism for type-writing machines, the combination with a carriage and an escapement therefor, of means for arresting the travel of said carriage comprising a series of stops connected to said carriage to shift as the latter travels in letter-space direction, a dog mounted on the machineframe for engaging said stops, a pivoted release-lever for said escapement, a pivoted locking-pawl for holding said lever out of operation, a bent actuating-spring fixed to said pawl engaging the end of said lever, a key- ICO operated reciprocating member having an arm for moving said dog to engage said stops and a spring-pressed latch connected to said member and arranged to shift said pawl and to place said spring under tension to throw said release-lever.

53. In spacing mechanism for type-Writing machines, the combination With a carriage, an escapement and a release therefor, of means for arresting the travel of said carriage comprising two elements, viz: a series of stops and means for dogging said stops, a `key-actuated reciprocating member arranged to be shifted from normal to move one of said elements to engage the other and a trip adjustably connected to said member and arranged to actuate said release during the return movement thereof.

54. In spacing mechanism for type-Writing machines, the combination With a power-propelled paper-carriage, an escapement and a release therefor, of means for arresting the travel of said carriage comprising a series of stops and means for dogging said stops, a brake for controlling the travel of said earriage, an adjustable shifter-cam for engaging said brake and key mechanism arranged to eifect the engagement of said dogging means With said stops, to shift said brake-cam and to actuate said release.

55. In spacing mechanism for type-Writing machines, the combination Witha power-propelled paper-carriage, an escapement and-a release therefor, of means for arresting the` travel of said carriage comprising a series of stops and means for clogging said stops, a rotatable member mounted on the machineframe and arranged to shift as said carriage travels in letter-space direction, a cylindrical brake-surface formed on said member, a pivoted brake-lever having means for engaging said surface, a shifter for said brake-lever, a cam-piece adjustably secured to said shifter and having an inclined face for engaging the end of said brake-lever and key mechanism` arranged to effect the engagement of said dogging means With said stops and to actuate` said shifter and said release.

56. In spacing mechanism for type-Writing machines, the combination With a carriage, an escapement and a release/therefor, of means for arresting the travel of said carriage comprising a rotatable driving-drum having a flexible driving connection and a reversely-arranged iiexible stop connection With said carriage, a stop-disk fixed to the shaft of said drum, a series of column-stops adjustable upon the periphery of said disk to define various letter-space positions, a cylindrical brake-surface formed on said disk, a pivoted brake-lever having means for engaging said surface, a dog for engaging said stops, a dogcarrier Whereon said dog is mounted, a calnpiece mounted on said dog-carrier for engaging said brake-lever and a key-lever arranged to actuate said dog-carrier and said release.

57. In spacing mechanism for type-Writing machines, the combination with a columnstop support provided with a series of grooves or seats corresponding to letter-space positions, of a series of stops adjustablymounted on said support and a separate fixed lockingpiece extending across said series of groups or seats upon said support for locking said stops in adjusted position.

58. In spacing mechanism for type-Writing machines, the combination' with a columnstop support provided with a series of grooves or seats corresponding to letter-space positions, of a series of stops adj ustably mounted on said support and a fixed locking-piece of spring metal on said support arranged to engage notches in said stops for holding the latter in adjusted position.

59. In spacing mechanism for type-Writing machines, the combination with a columnstop support provided With a series of grooves or seats corresponding to letter-space positions, of a series of stops adjustablymounted on said support and a locking-Wire extending across said grooves or seats and arranged to engage notches in said stops for hold-ing the latter in adjusted position.

GO. In spacing mechanism for type-writing machines, the combination with a rotatable stop-disk having a series of grooves or seats in its periphery, of a series of column-stops .adjustable upon said disk and a locking-ring of spring-Wire extending across said grooves or seats and arranged to engage notches in Witnesses:

DANIEL BENEDIcTUs SWARTZ, JACOB BERTHOLD ScHMIDr IOO 

